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Electrum

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Informational 15 AI analysisMessage 78 · Adequate
EL ElectrumElectrum BitcoinSoftware wallets

Merge pull request #10988 from f321x/update_security_review_ci_model

This commit updates Electrum's internal CI (continuous integration) script that runs an automated security review using Anthropic's Claude Code tool. It changes the AI model version used for reviews from 'claude-opus-5' to 'claude-opus-5-5…

CI hardening: detects and reports AI model downgrades during automated security reviewNo changes to application code, cryptography, network protocol, or build artifactsNo privilege escalation, injection, or data-exfiltration vectors introduced by the diff
638fbba8by Felix+75−111 file
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Informational 12 AI analysisMessage 90 · Strong
EL ElectrumElectrum BitcoinSoftware wallets

ci: security review: warn if the model got downgraded

This commit updates Electrum's own CI security-review script. It adds detection and warnings when the automated code reviewer (Claude Code) silently falls back to a different AI model, for example after a content-policy refusal. It does no…

CI-only changeNo modification of wallet, crypto, networking, or build artifactsAdds detection for AI model fallback/downgrade in automated security review
ace2ca7aby f321x+74−101 file
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Low 44 AI analysisMessage 68 · Adequate
EL ElectrumElectrum BitcoinSoftware wallets

Merge pull request #10987 from spesmilo/fix_10986

This commit fixes a bug where Electrum failed to recognize certain already-signed Bitcoin transactions as complete. Specifically, for native SegWit inputs, Bitcoin Core can produce a finalized PSBT with a valid witness but an empty scriptS…

Logic error in transaction completeness detectionNative SegWit witness handling edge casePSBT interoperability issue with Bitcoin Core
bef80421by ghost43+11−02 files
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Low 35 AI analysisMessage 81 · Strong
EL ElectrumElectrum BitcoinSoftware wallets

transaction: treat native segwit input with non-empty witness as complete

This commit fixes a bug where Electrum incorrectly treated finalized Bitcoin transactions as incomplete. Some wallet software (like Bitcoin Core and Sparrow) creates native SegWit transactions that omit an empty placeholder field Electrum …

Logic error in transaction completeness detectionPotential denial of service / user funds stuck due to refusal to broadcast valid finalized transactionInteroperability failure with Bitcoin Core and Sparrow PSBT output
e9bb42e6by ThomasV+11−02 files
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Moderate 68 AI analysisMessage 73 · Adequate
EL ElectrumElectrum BitcoinSoftware wallets

Merge pull request #10981 from spesmilo/do_not_sign_txin_with_witness

This change prevents Electrum from re-signing Bitcoin transaction inputs that already contain a witness (the data proving the input was authorized). The patch fixes a bug where Electrum could incorrectly sign a non-SegWit input as if it we…

Incorrect signature algorithm selection for non-SegWit inputs when witness data is presentPSBT handling edge case where pre-existing witness data influences signing pathPotential invalid signature production during transaction signing
9da4c342by ThomasV+10−21 file
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Informational 15 AI analysisMessage 73 · Adequate
EL ElectrumElectrum BitcoinSoftware wallets

Merge pull request #10974 from SomberNight/202609_nostr_psbt_xpub

This commit only adds a long code comment explaining a design choice in Electrum's PSBT-over-Nostr plugin. It does not change any program behavior. The comment documents that the plugin derives each cosigner's Nostr secret key from their B…

Documentation-only changeExplicit design tradeoff disclosure: cosigners can derive each other's Nostr secret keys from shared xpubsNo functional code change
46408a78by ThomasV+13−01 file
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Low 42 AI analysisMessage 73 · Adequate
EL ElectrumElectrum BitcoinSoftware wallets

Merge pull request #10980 from spesmilo/add_input_from_network_do_not_ignore_exceptions

This is a one-line bugfix in Electrum's transaction handling. Previously, the code accidentally swallowed (hid) almost all exceptions when fetching extra transaction data from the network, only re-raising errors that were both network-rela…

Exception swallowing bug fixedNetwork/transaction input enrichment logic changedSilent failure mode removed
bb9d3280by ghost43+1−11 file
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Moderate 60 AI analysisMessage 58 · Thin
EL ElectrumElectrum BitcoinSoftware wallets

Merge pull request #10970 from f321x/fix_bolt11_bugs_2

This commit fixes several bugs in Electrum's handling of BOLT11 Lightning invoices. The most user-visible fixes are: stricter validation of invoice amounts (rejecting zero, negative, sub-millisatoshi, and leading-zero amounts), correct pad…

Stricter BOLT11 amount validation prevents acceptance of zero, negative, sub-millisatoshi, and leading-zero amountsFixed int_to_data5 padding bug that corrupted small timestamp values during invoice round-tripMalformed 'r' routing tags now raise exceptions instead of being silently skipped
4b92c0f2by ghost43+82−939 files
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Moderate 61 AI analysisMessage 80 · Strong
EL ElectrumElectrum BitcoinSoftware wallets

add_info_from_network: do not swallow exceptions

Electrum's transaction builder had a bug where it would ignore certain consistency errors when fetching extra transaction data from the network. A malicious or misbehaving server could supply a wrong input amount, and Electrum would silent…

Swallowed exception leading to use of attacker-controlled input valuePSBT input consistency check bypassedPotential malicious Electrum server influence on transaction signing
3f67b21bby ThomasV+1−11 file
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Informational 15 AI analysisMessage 60 · Adequate
EL ElectrumElectrum BitcoinSoftware wallets

bolt11: remove tag arg from get_routing_info

This is a small code cleanup change. A function that reads routing hints from Lightning invoices no longer takes a tag argument because only one type of routing hint ('r') is now supported. All callers are updated accordingly. There is no …

e78fba28by f321x+12−127 files
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Moderate 62 AI analysisMessage 73 · Adequate
EL ElectrumElectrum BitcoinSoftware wallets

Merge pull request #10940 from accumulator/fix_10937

This commit tightens how Electrum parses Bitcoin payment requests (BOLT11 lightning invoices and BIP21 URIs). It turns previously uncaught internal errors into proper validation failures, rejects malformed invoice fields that used to be si…

Stricter input validation for externally supplied BOLT11 invoices and BIP21 URIsPreviously uncaught exceptions (ValueError, UnicodeDecodeError, ecc errors) are now wrapped in domain-specific decode exceptionsMalformed fallback addresses are skipped rather than aborting or crashing
a57ef6e7by Felix+707−9610 files
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Low 40 AI analysisMessage 36 · Opaque
EL ElectrumElectrum BitcoinSoftware wallets

bolt11: followup #10940

This commit tightens how Electrum parses BOLT11 Lightning invoices. It now rejects duplicate 'n' (node pubkey) tags instead of silently keeping only the first one, and it rejects invoice timestamps that are negative or too far in the futur…

Stricter validation of invoice timestamp boundsDuplicate 'n' tag now raises an exception instead of being silently droppedFollow-up to prior PR #10940, indicating a recent area of security-sensitive review
3026fbdbby f321x+14−232 files
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Low 32 AI analysisMessage 73 · Adequate
EL ElectrumElectrum BitcoinSoftware wallets

Merge pull request #10737 from sashazykov/hw-close-wallet-thread-leak

This commit fixes a shutdown bug in Electrum's hardware wallet support. Previously, if disconnecting from a hardware wallet failed, the cleanup thread could keep running, which could crash the application when closing. The fix stops the th…

Process abort/crash at shutdown due to leaked QThreadException during cleanup not handled, potentially causing abnormal terminationHardware wallet client close made best-effort with error logging
5b77ca46by Felix+9−22 files
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Informational 23 AI analysisMessage 58 · Thin
EL ElectrumElectrum BitcoinSoftware wallets

Merge pull request #10958 from SomberNight/202609_deps

This commit is a routine dependency update for the Electrum Bitcoin wallet. It bumps versions of Python, OpenSSL, secp256k1, and various Python packages used in builds and runtime. The commit itself does not fix any known security bug in E…

Dependency version bumps for cryptographic libraries (OpenSSL, libsecp256k1, electrum-ecc)Routine maintenance commit with no explicit security claimHash-only changes in deterministic requirements files
8bd8c3fbby ghost43+57−5612 files
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Informational 21 AI analysisMessage 58 · Thin
EL ElectrumElectrum BitcoinSoftware wallets

Merge pull request #10965 from SomberNight/202609_header_checkpoints

This commit only adds new Bitcoin block header checkpoints to Electrum's built-in chain data files. Checkpoints are hardcoded reference points that help the wallet verify it is following the real blockchain and not a fake one. Updating the…

Hardcoded blockchain checkpoints extended for all supported networksNo executable code or cryptographic logic changedNo bug fix, privilege change, or input validation change present
9e0b7e64by ghost43+276−04 files
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Informational 15 AI analysisMessage 58 · Thin
EL ElectrumElectrum BitcoinSoftware wallets

update block header checkpoints

This commit simply refreshes Electrum's built-in list of Bitcoin blockchain checkpoints. Checkpoints are known-good block hashes that help the wallet verify it is following the real chain. The update adds newer checkpoints for mainnet, sig…

e11c579bby SomberNight+276−04 files
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Low 46 AI analysisMessage 58 · Thin
EL ElectrumElectrum BitcoinSoftware wallets

Merge pull request #10945 from accumulator/stale_utxo_data_fixes

This commit fixes cases where Electrum's wallet cache could hold onto outdated information about coins and transactions after blockchain reorganizations or mempool changes. For example, if a transaction was previously thought to be mined b…

stale cached state after reorg/mempool evictionincorrect confirmation metadata displayed to userscache invalidation added at multiple state transitions
e20b24c0by Felix+132−239 files
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Informational 15 AI analysisMessage 60 · Adequate
EL ElectrumElectrum BitcoinSoftware wallets

transaction: add set_mined_info setter to TxInput

This commit is a simple code cleanup: it replaces two repeated lines that set a transaction input's block height and position with a single helper method called set_mined_info. There is no change in behavior, no bug fix, and no security re…

61f71acbby f321x+7−73 files
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Informational 15 AI analysisMessage 60 · Adequate
EL ElectrumElectrum BitcoinSoftware wallets

qt/util: consolidate short_id check pattern

This is a small internal code cleanup in the Electrum Bitcoin wallet. It moves the logic that builds a compact transaction identifier (like '123x4') into one shared helper method, and removes a duplicate helper class. There is no user-faci…

2af9e26aby f321x+7−133 files
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Informational 19 AI analysisMessage 85 · Strong
EL ElectrumElectrum BitcoinSoftware wallets

contrib: build appimage: fetch ca-certificates from pinned sources

This commit changes how the Electrum AppImage build container first obtains trusted web certificates. Because the build's pinned Debian package sources use HTTPS, the container needs certificates before it can talk to them. The old method …

build pipeline changetemporary downgrade from HTTPS to HTTP for package bootstrappackage integrity still protected by apt GPG signatures
fd687940by f321x+11−41 file
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